CN102292954A

CN102292954A - Providing circuit switched calls and services over a broadband network

Info

Publication number: CN102292954A
Application number: CN2008801327278A
Authority: CN
Inventors: O·梅兰德; J·C·埃韦特
Original assignee: Telefonaktiebolaget LM Ericsson AB
Current assignee: Telefonaktiebolaget LM Ericsson AB
Priority date: 2008-11-24
Filing date: 2008-11-24
Publication date: 2011-12-21
Anticipated expiration: 2028-11-24
Also published as: EP2368347B1; CN102292954B; US20120314662A1; WO2010057538A3; US9148451B2; EP2368347A2; WO2010057538A2

Abstract

The present invention is directed to a method, a switching server, a terminal device and system for providing circuit switched calls and services to terminal devices connected to a switching server via an IP Multimedia Subsystem. The method comprises a step of providing (S120) a first interworking entity (330) in the terminal device (300) for interworking between circuit switched signalling messages and signalling messages related to packet switched sessions towards the IMS (30). The method further comprises providing (S130) a second interworking entity (230) in the switching server (200) towards the IMS (30). The terminal device (300) is thus capable of accessing circuit switched calls and services directly from the switching server (200).

Description

Provide circuit-switched call and service by broadband network

Technical field

The present invention relates to the communication in the network, more particularly, relate to and being used for from swap server to providing circuit-switched call or service method via the terminal installation that broadband network connected, being provided for treatment circuit switched call or service and being used for the swap server that carries out interface via the terminal that broadband network was connected, being used for the communicator of service is provided and is used for for example service such as circuit-switched call and service is offered the system that is connected to the terminal installation of swap server via broadband network to the user.

Background technology

By in the communications field of network, become general by the use of the packet-switched services of the broadband access network of packet switching network normally.A kind of service that more and more becomes main flow is for example according to the transmission based on the packet-based voice of the voice VoIP of Internet Protocol.The problem of interworking solves by the special interworking node of realizing in network usually between the available circuit switched voice call that provides in VoIP service and the available circuit switching network.Because interworking, the user of the packet-switched voice services by packet switching network can also with user's interoperability of legacy circuit-switched voice service.

Recently, Virtual network operator and user run into the increase needs that also carry out circuit-switched call or packet switching network.In other words, in side existence packet-switched services and circuit-switched network such as VoIP are carried out the problem of interworking, and provide circuit-switched call and service to become very important to the packet switching user at opposite side.

By disposing the backbone network capacity that low-cost fixed broadband inserts and increases, voice become the key service that is realized by IP network from the IP-based voice application of subenvironment.This especially realizes apparent by VoIP such as for example Skype.

Skype therefore imitation and strengthen (video, existence ...) the interior legacy circuit-switched voice service of calling out of IP network.In order to carry out interworking with the legacy circuit-switched voice service, Skype disposes gateway, and these gateways are arbitrated between Skype voice service and circuit switched speech service.Be easy to voice quality of installation, impression and sensation, " fully good " and the success that low usage charges help Skype.

Simultaneously, the mobile voice visit continues to be arranged by legacy circuit-switched mobile systems such as for example mobile SoftSwitches.Mobile SoftSwitch is the network entity that is used for controlling the multiple function relevant with the communication of network.SoftSwitch can be included in the physical unit, but is distributed in some physical units usually, so that divide the functional distribution in the network.For SoftSwitch, be included in to reference such as demonstration, referring to for example TS 23.002 according to the network entity in the network architecture of 3GPP standard.Mobile service provider in the developed country continues to obtain the 50-90% of its income by the mobile voice service, and does not leave any inducement of mobile voice service.In emerging market, the infrastructure that fixed broadband inserts is unavailable usually, neither be economically feasible.This makes the walking circuit switching network become the main selection of disposing voice service.

Wireless and the mobile broadband that can carry voice inserts now and just occurs by WLAN, WiMAX, HSPA, LTE.This makes VoIP service, for example Skype of fixed type gradually can also be available in wireless and mobile environment.Telecommunications industry has been worked out internet protocol multimedia standard (IMS) and has been handled the service that is realized by ever-increasing broadband access network.Mediaphone service (MMtel) also exists, and at VoIP market.But the IMS system is widespread deployment not as yet.

Now, the user can use arrowband traditional circuit voice or lower cost broadband access VoIP service by wired or mobile phone.Advantage with low-cost VoIP service means that also it still is the active selection of permanent circuit voice that the user need carry out about being to use Skype, other VoIP service, walking circuit voice.Thisly be chosen in that its geographical position, device that they want to use, people, the opposing party that they want to find tend to what uses, the length of dialogue, price that they prepare to pay, they its pre-paid account for this service have how much amount of money, comprise that they want the voice quality kind that has they want to be affected aspect the service of calling or the like.Therefore, need initiatively to select, it makes that use is not straightforward.

Another problem of user is that user experience, quality and the service that is provided change along with the selection of being carried out.For example, Skype user can have good voice quality and have bad quality at second day in some day, and perhaps service may be unavailable fully.

Mobile service provider in the developed country notices that the new wireless and mobile broadband of present appearance inserts.We understand, and a certain amount of speech business will be moved to the VoIP service from circuit network.Current mobile service provider has the restricted manner that benefits from be converted to VoIP.Estimate that IMS can play following effect aspect this, and for example proprietary realization such as Skype rise leading because they are available now.Not controlled voice migration represents that the major part of the income of provider disappears.

The investment that mobile service provider in the developing country wants to guarantee current speech basic facility can be used for a long time.Wherein wireless and mobile broadband increases sharply and situation that rapid voice migration takes place will hinder the current speech infrastructure investment.

Comprise for the proprietary voip technology of using in the broadband network, as Skype move and fixed service provider faces many difficult problems.The network of similar Skype is the network that their needs are started from scratch and made up in essence.This means that having developed in the circuit voice network and optimized all aspects that surpass 100 years all need realization again in new voip network.The market in maintenance high availability VoIP service (aspect service performance, capacity, scalability or the like) and the voip network and the compliance (market special services, charging, monitoring, interconnection or the like) of management system aspect are technical barriers, and thereby are expensive.Another problem is that it is functional that proprietary voip networks such as for example Skype are connected to the required gateway simulation of traditional voice circuit network.Compare with 2 GSM subscribers that for example have voice dialogue, this produces significantly different impression and sensations to the voip user.

Comprise IP multimedia (IP MM) system move and fixed service provider faces situation similar when wanting the proprietary voip technology of widespread deployment.This is owing to the limited deployment of current IP MM and to the needs of the gateway of interworking situation.

Strengthen available circuit switched voice equipment to support that original VoIP service based on SIP is moved and fixed service provider also faces some difficult problems.The sexual needs of SIP client access security directly realize in switching node, perhaps carry out the access node of interworking and the switching node that need be introduced between inserting.Therefore, VoIP and the interworking between the circuit switching based on SIP need define and realize with capacity loss.Network scalability and stability also need to be resolved.Therefore, a series of problems still represent.

Known in the artly be used for the trial that broadband access is connected to existing mobile voice network by private BSC/RNC analog node being placed between broadband access and the mobile SoftSwitch.Though have the concern from main mobile service provider, this solution is not confirmed as yet.In addition, it is single source solution, network is introduced added complexity, and face a foregoing availability and a scalability difficult problem.

The also known a kind of communication node in this area, it is added into known communication network, is used for carrying out interface between mobile swap server and the one or more different Access Networks.The complementary network device is carried out by service that is provided between service that broadband access network provided and the mobile switching centre or by the IMS network and the interworking between the mobile swap server.Be noted that this known solution carries out interworking on network to network interface.But this known solution also suffers the problem identical with the above at least.For example, interworking causes functional loss because during the interworking process, some functional may be owing to can not or be adapted to different functional losses of serving with all original function conversions of a kind of service.In addition, this solution increases the complexity and the maintenance thereof of network, because it increases another assembly to whole network.Simultaneously, the low reliability of known solution and low scalability still are a problem.

Summary of the invention

An object of the present invention is to realize being better than being used for providing the improvement of the known technology of circuit switched service to the terminal installation that is connected to circuit-switched network via broadband networks such as for example internet protocol multimedia subsystems.

According to the first embodiment of the present invention, a kind of service method that provides in communication network is disclosed.The service of the broad scope that can provide in communication network is provided term " service ", for example calling, the calling related service such as calling transfer, Call Waiting or the like.Service comprises that also its SMS is message passing service specific example, that pass through communication network in the GSM network, perhaps can be by circuit-switched network or the data, services that transmits by packet switching network.

The communication network of wherein carrying out method of the present invention generally includes swap server, internet protocol multimedia subsystem (full IMS) and one or more circuit switching connecting system.Known in the art, internet multimedia subsystem is framework or the framework that is used for providing to mobile or fixed-line subscriber service.Because IMS represents to be used to provide the framework of service, so it is not limited to be used to provide described service or is used to provide particular network to the access of the terminal of using described service.In fact, IMS comprises for example multiple wireless network such as GSM, UMTS or LTE, only enumerates some examples here, but can also comprise for example full POTS, ISDN or the like fixed network.In addition, portable terminal is not limited to mobile radio terminal, and can be can be by cable or any movable termination that is connected with network by wireless connections.The example of portable terminal is pocket computer, PDA or electronic installation with any other kind that network connects.

The foregoing circuit exchange connecting system that comprises in the communication network is not limited to any specific example of Access Network, but comprises the fixing and wireless access network of all kinds that allows accessing terminal to network and set up.The example of fixed access network is POTS, ISDN, ADSL, cable access, cable modem network or the like.Though will use ADSL as example below, it is the replacement symbol (placeholder) of the fixed broadband access of any kind of such as ADSL, SDSL, VDSL, cable just.The example of wireless access network comprises GSM, GPRS, UMTS, LTE, CDMA and evolution thereof or the like.

The swap server that comprises in the communication network is the network entity of being responsible for the treatment circuit Exchange Service and connecting by its circuit switching of transmitting described service usually.Swap server comprises the access controlling call entity, inserts controlling call entity and is provided for the treatment circuit switched call and serves one of them or both.Circuit-switched call and service comprise circuit-switched call and the service that its example is following: message passing service such as SMS that provide in the GSM network for example, call out related service, the fax related service, data related service, and the service of all kinds of transmitting the information of voice, data or any kind to the user.Circuit-switched call is connected via circuit switching with service and offers the terminal that is connected to swap server via one or more described circuit switching connecting systems.The circuit switching signaling message is generally used for controlling these connections.Swap server can be embodied as separate network, perhaps can be included in other network entity.For example, swap server can be arranged in Mobile Switching Center Server (MSC-S), perhaps can be the part of mobile SoftSwitch, perhaps can be included in the phone SoftSwitch (TSS).

Method of the present invention is used for further circuit-switched call being provided and serving one of them or both to the terminal installation that is connected to swap server via internet protocol multimedia subsystem from communication network by the step of carrying out following detailed description.

This method precognition provides entity for terminal installation provides service, and it is used that service provides entity to be provided for making circuit-switched call and service one of them or both can be the user by the circuit switching signaling message with the circuit switching join dependency.In other words, terminal provides and allows the user who is connected to swap server to use the suitable function that is made its available circuit-switched call or service usually by swap server.

This method also comprises the following steps: to be provided for to be sent to the first interworking entity that carries out interworking between the circuit switching signaling message that the inserts controlling call entity signaling message relevant with the packet-switched sessions that is sent to internet protocol multimedia subsystem in terminal installation.In other words, terminal installation provides suitable interworking function, and interworking function allows usually interworking between the signaling message that the circuit switching signaling message handled by the access controlling call entity that wherein comprises by swap server and terminal installation exchange with respect to the packet sessions in the internet protocol multimedia subsystem usually or adaptive.

This method also comprises the following steps: in swap server, provides the second interworking entity between internet protocol multimedia subsystem and access controlling call entity.In other words, the second interworking entity be adapted at a side and internet protocol multimedia subsystem communicates and opposite side with insert controlling call entity and communicate.The second interworking entity is provided at the relevant signaling message of the packet-switched sessions that is sent to internet protocol multimedia subsystem and is sent between the circuit switching signaling message that inserts controlling call entity and carries out interworking.The second interworking entity is arranged to carry out interworking on the contrary with the first interworking entity.In other words, the second interworking entity comprises the suitable function that is used for carrying out interworking between relevant signaling message of packet-switched sessions and circuit switching signaling message.Therefore, the second interworking entity is carried out and the performed opposite interworking of the first interworking entity or adaptive on the contrary.

This method is also predicted the following step: set up the packet-switched sessions by the first interworking entity and the second interworking entity institute termination.In other words, terminal installation can be connected to swap server by packet-switched sessions, and packet-switched sessions is by the first interworking entity and the second interworking entity termination that is included in the swap server that are included in the terminal installation.

This method also comprises the following steps: to provide entity to provide circuit-switched call and service one of them or both via the first interworking entity and the second interworking entity from the service of access controlling call entity to being included in terminal installation that is provided for circuit switching and is connected.In other words, usually circuit-switched call that provides from the access calling entity of swap server or service offer the user of terminal installation by the first interworking entity and the second interworking entity, and the first interworking entity and the second interworking entity are provided for carrying out as required interworking and opposite interworking.

The step that is noted that this method need not to carry out according to said sequence.In fact, any other of described step may order also be fit to carry out this method, as long as each of described step carried out once.

According to an alternative embodiment of the invention, a kind of swap server that is used for communication network is provided, wherein communication network comprises internet protocol multimedia subsystem (IMS) and one or more circuit switching connecting system.Also be applicable to the swap server of implementing with reference to IMS with the identical consideration that circuit switching connecting system, reference institute of the present invention implementation method are carried out.Swap server is provided for the session of termination and internet protocol multimedia subsystem, and comprises signaling entity and interface entities.

Signaling entity is used for exchanging the circuit switching signaling message that relevant circuit switching connects by inserting side with the terminal that communicates via described one or more circuit switching connecting systems.In other words, signaling entity can come switched circuit exchange of signaling message with the terminal that is connected by the circuit switching connecting system.The access side of signaling entity is represented a part or the interface of the signaling entity of suitable switched circuit exchange of signaling message.The circuit switching signaling message is to be associated with the signaling message that circuit switching connects.For example there are foundation or call release or handle the required signaling message of service of other type such as the SMS service.The access controlling call entity of swap server is provided for handling by signaling entity and connects the circuit-switched call that offers terminal and serve one of them or both via circuit switching.In other words, inserting controlling call entity comprises and handles the suitable function that is used for being connected via circuit switching the join dependency that calling is provided or serves.Controlling call entity and signaling entity carry out alternately, and signaling entity provides necessary signaling message.Insert controlling call entity and also comprise the network side that is used for carrying out interworking with other communication network.In other words, swap server be fit to by signaling entity the access side, for example by the user exchange of signaling message of User Network Interface (UNI) with terminal installation, and be fit to by be included in insert in the controlling call entity separately and the heterogeneous networks side, for example carry out interworking by network to network interface (NNI) and other communication network.

Swap server also comprises and is used in the access side of signaling entity and is connected to the interface entities of carrying out interface between the terminal of swap server via internet protocol multimedia subsystem.Interface entities also is arranged in and is used for the circuit switching signaling message that connects about the circuit switching of signaling entity and is used for carrying out interworking between the signaling message about the packet-switched sessions of the terminal that is connected to swap server via internet protocol multimedia subsystem.In other words, interface entities will be connected to the terminal of swap server and the access side of above-mentioned signaling entity is carried out interface via internet protocol multimedia subsystem.Interface entities is then carried out swap server by the handled circuit switching signaling message of signaling entity and be sent to and from the interworking between the signaling message of the terminal that is connected to swap server by internet protocol multimedia subsystem, wherein signaling message exchanged with the terminal of relevant packet-switched sessions.

In another embodiment of the present invention, provide a kind of communicator that is used for providing to the user service, wherein service can belong to any kind of shown in reference enforcement method of the present invention.This communicator is fit to insert swap server via internet protocol multimedia subsystem, and comprises that service provides unit, session termination unit and interworking unit.

It is used that service provides the unit to make the circuit exchanging telephone service can be the user by the circuit switching signaling message with the circuit switching join dependency.In other words, service provides the unit to realize suitable function in communicator, makes the user of communicator can utilize circuit switching to connect typical and those services that handle by the circuit switching signaling message usually of network.

The session termination unit is fit to the termination signaling message relevant with packet-switched sessions.

The interworking unit is adapted at being sent to service and provides between the relevant circuit switching signaling message of the circuit-switched messages of the unit signaling message relevant with the packet-switched sessions that is sent to the session termination unit and carry out interworking.In other words, the interworking unit can be considered to be adapted at serving provides the unit that carries out interworking between the handled circuit-switched messages in the unit signaling message relevant with changing the packet-switched sessions handled by portion's section termination unit.

According to an alternative embodiment of the invention, a kind of system that is used for providing at communication network service is provided, wherein communication network comprises internet protocol multimedia subsystem and one or more circuit switching connecting system.This system comprises swap server and terminal installation.

Swap server comprises the access controlling call entity, inserts controlling call entity and is provided for handling connecting to offer via circuit switching connecting system one or more via circuit switching by the circuit switching signaling message and is connected to the circuit-switched call of terminal of swap server and service one of them or both.In other words, swap server can provide circuit-switched call or service to the terminal that is connected to swap server via the circuit switching connecting system by inserting controlling call entity.

The terminal that is included in the system is connected to swap server via internet protocol multimedia subsystem.Communication network also is fit to circuit-switched call is provided and serve one of them or both to terminal installation.In other words, communication network is fit to provide circuit-switched call or service to the terminal that is connected to swap server via the circuit switching connecting system, and is fit to simultaneously to the terminal installation that is connected to swap server by internet protocol multimedia subsystem, therefore to circuit-switched call or service can be provided by the terminal installation that the packet switching Access Network connects.

The terminal installation of system also comprises: service provides entity, and it is used to be used for making circuit-switched call and service one of them or both can be the user by the circuit switching signaling message with the circuit switching join dependency; And the first interworking entity, be used for carrying out interworking being sent between the circuit switching signaling message that the inserts controlling call entity signaling message relevant with the packet-switched sessions that is sent to internet protocol multimedia subsystem.In other words, terminal installation comprises: be used to make circuit-switched call or service to can be the used suitable function of user; The first interworking entity, the signaling message of the packet-switched sessions that the circuit switching signaling message that is used for being associated with circuit-switched call or service and relevant and the packet-switched sessions of internet protocol multimedia subsystem are related carries out interface.

The swap server of system also comprises internet protocol multimedia subsystem and inserts the second interworking entity between the controlling call entity, and wherein the second interworking entity is provided for carrying out interworking between the relevant signaling message of the packet-switched sessions that is sent to internet protocol multimedia subsystem and the circuit switching signaling message that is sent to the access controlling call entity on the contrary with the first interworking entity.In other words, swap server comprises the second interworking entity, and it carries out the opposite interworking of interworking performed with the first interworking entity of terminal installation.

In implementing system of the present invention, terminal installation and swap server comprise the corresponding controllers entity, be used to set up packet-switched sessions, and be used for providing entity to provide circuit-switched call and service one of them or both from the access controlling call entity that is provided for circuit switching and is connected to the service of terminal installation via the first interworking entity and the second interworking entity by the first interworking entity and the second interworking entity institute termination.In other words, terminal installation and swap server are fit to setting up packet-switched sessions between them by the first interworking entity and the second interworking entity, and are arranged so that circuit-switched call and service directly offer terminal installation from swap server by the first interworking entity and the second interworking entity.

Define other advantageous embodiment of the present invention in the dependent claims.

One of advantage provided by the present invention is that the service provider with the swap server equipment such as existing mobile SoftSwitch equipment or phone SoftSwitch equipment can enlarge the voice service that offers broadband access.In addition, this can need not additional network nodes and realize.

Another advantage of the present invention is, inserts the terminal installation of swap server and has realized making circuit-switched call and service to can be the used required all functions of user.For example, this can realize by realizing typical identical function of circuit-switched terminals device or identical DLL (dynamic link library) in the wide-band terminal device.The user then has the right from by direct access circuit switched call of the terminal installation that internet protocol multimedia subsystem connected and service.This means that all functions of circuit-switched call and service are available at user side, do not exist because of the interworking in the network and lose any functional risk.

There are user's impression and another advantage that sensation is protected when utilizing circuit-switched call and service.For example, compare, have identical impression and sensation by the user who inserts the terminal installation that swap server calls out via IMS with GSM subscriber with voice dialogue.

The present invention also eliminates for example at least a portion of the shortcoming of above-described prior art, and is provided for providing in communication network the improving one's methods of service, swap server, communicator and system.

Description of drawings

Fig. 1 is the functional block diagram of an example of the present invention's communication network applicatory;

Fig. 2 is the schematic flow diagram of the step that comprises in the method that illustrates according to one embodiment of the present of invention;

Fig. 3 is the functional block diagram that illustrates according to the part details of the swap server of one embodiment of the present of invention;

Fig. 4 illustrates the functional block diagram according to the communicator of one embodiment of the present of invention;

Fig. 5 illustrates according to one embodiment of the present of invention, is used for providing at communication network the function diagram of the system of service;

Fig. 6 illustrates the functional block diagram according to the MSC-S of one embodiment of the present of invention;

Fig. 7 is the functional block diagram according to the IP MM subscription client of one embodiment of the present of invention;

Fig. 8 represents to illustrate according to one embodiment of the present of invention, based on the functional block diagram of the VoIP of MSC-S;

The reposition that Fig. 9 illustrates according to one embodiment of the present of invention upgrades signaling flow;

Figure 10 illustrates the mobile originating signaling flow according to one embodiment of the present of invention;

Figure 11 A illustrates new mobile-terminated signaling flow the 1/2nd part according to one embodiment of the present of invention;

Figure 11 B illustrates new mobile-terminated signaling flow the 2/2nd part according to one embodiment of the present of invention.

Embodiment

The preferred embodiments of the present invention are described with reference to the accompanying drawings.Be noted that following description comprises the example that is used for understanding better claimed notion, but be not appreciated that the present invention of requirement for restriction protection.

The functional block diagram of Fig. 1 illustrates an example of the present invention's communication network applicatory.

Communication network 10 comprises the communication network as internet protocol multimedia subsystem (IMS) that adopts reference number 30 represented.Known in the art, internet protocol multimedia subsystem is to be used for to the framework framework that moves and fixed-line subscriber transmission IP serves.This framework is divided into the transport layer that is used to carry the voice-and-data business usually, be used to carry the key-course of relevant signaling and be used for the service and/or the application layer that service are provided and/or use to the user.This framework also comprises Access Network, core network, interconnection, interworking entity and is used to handle various users and/or other network correlation subsystem or entity of network service (for example record keeping, network management, operation and maintenance or the like).IMS is not limited to the core network of particular types or the Access Network of particular types, and can be any combination of existing core network and existing Access Network.For example, the Access Network part of internet protocol multimedia subsystem can be fixed, for example POTS, rISDN, ADSL, cable insert, cable modem network, or wireless, for example GSM/UMTS, LTE, CDMA or its evolution, W-LAN or the like.Terminal installation 300 shown in Figure 1 is connected to IMS network (30), and can use the service of transmitting or being transmitted by IMS network (30) from IMS network (30).

The IMS core network is generally used for providing and inserts integrality (client certificate, fail safe or the like) and as about whether calling the decision-point of swap server.For this reason, do not need increased functionality, do not need the application server support yet the IMS core network.But, can also predict to other entity assignment of network (10) functional possibility relevant with authentication and/or fail safe.

Communication network (10) also comprises employing 40-1 ... one or more circuit switching connecting systems that 40-N is represented.The example of each described circuit switching connecting system can be GSM network, UMTS network, LTE network, WLAN, cdma network or its evolution or the like.But described circuit switching connecting system is not limited to wireless system, but also may be fixed access network such as POTS or ISDN for example.Obviously, circuit switching connecting system 40-1 ... 40-n need belong to identical type, but can belong to variety classes and according to various criterion as normal conditions.Their something in common is that each of circuit switching connecting system comprises the ability that the treatment circuit exchange connects, and can provide service to the user via the circuit switching connection.Be noted that in this application term " service " refers to usually the service of all kinds that transmits by any communication network, for example calling, the message passing service such as the SMS text message, fax services, transfer of data or the like.

Terminal installation 400-1 ... 400-n is by corresponding circuits exchange connecting system 40-1 ... 40-n obtains the access right to network, thereby can utilize by the circuit switching connecting system or the service of being transmitted by the circuit switching connecting system.

Network (10) also comprises swap server (200), it be carry out between the terminal and/or terminal and other network between and/or the function of exchange that is connected between some networks and the network entity of management function.The management function of swap server comprise the function relevant with user's registration or position, with those users that move move relevant function, with establishment of connection or release and the function relevant with the transmission of service.In general, management function also can comprise and be used to provide services on the Internet or carry out the function of interface with the network service, for example accounts, operation and maintenance, network management or the like.

Communication network (10) also comprises other network 50-1 of the core network that can be any kind of ... 50-n.These networks can be to use for example circuit-switched network or the packet switching network of any kind of ISUP, BICC, SIP-I, SIP NNI or the like.Has reference number 42-1 ... 42-n and the explanation of 32 lines are at counterpart terminal 400-1 ... 400-n and 300 with swap server (200) between set up be connected.Be noted that illustrative connects 42-1 ... 42-n and 32 can be in belonging to an example signaling message of user-to-network interface (UNI).

At opposite side, illustrative connects 42-1 ... 42-n with swap server (200) respectively with map network 40-1 ... the 40-n interconnection, and belong to network to network interface (NNI) in one example.

Fig. 2 illustrates the schematic flow diagram that comprises according to the step of the method for one embodiment of the present of invention.The method of this embodiment is adapted at carrying out in as shown in Figure 1 the communication network.Fig. 3 illustrates the swap server according to one embodiment of the present of invention, and it can be realized in the network shown in fig. 1.That is, communication network comprises swap server (200) and internet protocol multimedia subsystem (30) and one or more circuit switching connecting system (40-1 ... 40-n).Swap server comprises access controlling call entity (250), inserts controlling call entity (250) and is provided for treatment circuit switched call and/or service.Circuit-switched call is connected by the circuit switching signaling message, via circuit switching with service and offers via circuit switching connecting system (40-1 ... one or more terminal (400-1 that are connected to swap server 40-n) ... 400-n).Method of the present invention also can also provide circuit-switched call and/or service to the terminal installation (300) that is connected to swap server (200) via internet protocol multimedia subsystem (30) from communication network (10).Usually, terminal installation (300) is according to as adopting the packet switching shown in the reference number (32) to connect to carry out and the communicating by letter of IMS among Fig. 1.In order to provide circuit-switched call and/or service to terminal installation (300), this method precognition series of steps as shown in Figure 2.

Be noted that terminal installation (300) can be the device of any kind of that can be connected with network by wired connection or by wireless connections.For example, terminal installation (300) may be the wireless terminal of carrying out with the packet switching communication of IMS, for example Wireless LAN terminal or be connected to the notebook of IMS by the ADSL Access Network.

Method according to the embodiment of the invention comprises the following steps (S110): provide entity for terminal installation provides service, it is used that service provides entity to be used for by using circuit switching signaling message with the circuit switching join dependency to make circuit-switched call and/or service can be the user of terminal installation (300).Described service comprises multiple service, calls out related service, data exchange service or the like comprising SMS text message, for example calling transfer, Call Waiting etc.The circuit switching signaling message is to handle with the circuit switching of managing by its transfer circuit switched call and/or service to be connected required signaling message.Example is the state desired position updating message of usually coming monitoring terminal by network, for example monitoring terminal whether still be in activity pattern and thereby be connected to network or whether because of any reason it with the network disconnection.The circuit switching signaling message also comprises the mobile management message that is used to control the position that wherein particularly terminal occurs when terminal is portable terminal.In the GSM network, for example, the position of mobile management function managing mobile terminal when portable terminal moves, thereby change provides the sub-district of service to it.But the circuit switching signaling message is not limited to above-mentioned functions, but can comprise that required other of signaling that circuit-switched call and/or final needs of service are provided and foundation, maintenance, release connection is functional.

This method also is included in the step (S120) that the first interworking entity (330) is provided in the terminal installation (300).Interworking entity (330) carry out be included in swap server (200) in the circuit switching signaling message that exchanges of access controlling call entity and the interworking between the signaling message relevant with the packet-switched sessions that exchanges of internet protocol multimedia subsystem (30).Therefore, adaptive between the signaling message of first interworking entity (330) the executive circuit exchange of signaling message and relevant packet-switched sessions.The interworking entity (330) that is described in more detail is below realized described adaptive by the mapping between the signaling message of executive circuit exchange of signaling message for example and relevant packet-switched sessions.In another embodiment, can be adaptive by realizing in the signaling message that the circuit switching signaling message is embedded or is encapsulated in relevant packet-switched sessions.According to circumstances, for example when the method for mapping message do not allow all functions that realize by signaling message one by one at once, can realize the combination of shining upon and embedding.Can predict other embodiment, if their allow circuit switching signaling message and at least one group of being associated with between the signaling message of packet-switched sessions at least a signaling in two kinds of signalings given functional adaptive.

This method then is included in another step (S130) that the second interworking entity (230) is provided in the swap server.The second interworking entity (230) is arranged on internet protocol multimedia subsystem (30) and inserts between the controlling call entity (250), and be provided for be transported to internet protocol multimedia subsystem (30) or transport from internet protocol multimedia subsystem (30) or internet protocol multimedia subsystem (30) the relevant signaling message of packet-switched sessions and and the circuit switching signaling message that exchanges of the access controlling call entity of swap server (200) between carry out interworking.In other words, the second interworking entity is carried out and performed adaptive opposite adaptive of the first interworking entity.In one embodiment, this opposite adaptive method that can shine upon by message and the circuit switching signaling message with the associated packet exchange session is carried out, wherein the employed mapping of the second interworking entity must be corresponding with the employed mapping of the first interworking entity, so that at one end determine at first by the ifq circuit exchange of signaling message of interworking entity in other end mapping.According to another embodiment, can realize the adaption function in the second interworking entity by from embed message, sealing off (decapsulate) or retrieval from the circuit switching signaling message of the signaling message that is associated with packet-switched sessions.In another embodiment of the combination that realizes mapping and embed, the adaptive combination that comprises mapping and opening, it is corresponding to the first interworking entity at terminal installation place performed mapping and encapsulation.Embed and encapsulation all expression be used for a message according to a kind of agreement is included in technology according to the message of another kind of agreement.In other words, the adaption function of the second interworking entity can be carried out according to some modes, if its produce via IMS, by with the initial corresponding associated circuit switching signaling message that signaling message exchanged of packet-switched sessions of circuit switching signaling message that transmits and/or estimate to receive of terminal at the terminal installation place.

Can predict and be used for carrying out other adaptive technology, for example the message of first agreement is attached to the message of second agreement by the first interworking entity and/or the second interworking entity.

According to an alternative embodiment of the invention, the second interworking entity is adapted at being sent to the User Network Interface circuit switching signaling message that inserts controlling call entity (250) and is sent between the User Network Interface signaling message of packet-switched sessions of internet protocol multimedia subsystem (30) and carries out interworking.In other words, according to this embodiment, the illustrative lines (42-1 of the second interworking entity in Fig. 1 for example ... 42-n) and carry out adaptive on (32) represented User Network Interface from circuit commutative field to the/signaling from packet-switched domain, transmitted through message.Be noted that by illustrative lines (52-1 ... 52-n) entrained signaling and relating to by swap server (200) and other network (50-1 as network entity ... 50-n) the signaling message that is exchanged.Therefore, these signalings are carried by network to network interface (NNI).Known in the art, this signaling message of two types generally is different, and carries the different details that realize.

Comprise foundation another step (S140) according to method of the present invention by the packet-switched sessions of described first interworking entity and the described second interworking entity institute termination.From above apparent, the packet-switched sessions of setting up is the session of carrying the signaling message relevant with packet-switched sessions, and carries the circuit switching signaling message by interworking inter-entity ground connection implicit expression.Wherein embed the embodiment that carries out interworking by message by reference, the packet-switched sessions of setting up carries the signaling message relevant with packet-switched sessions, and wherein these signaling messages comprise the circuit switching signaling message that wherein embeds.According to wherein carrying out adaptive embodiment by mapping, packet-switched sessions carries corresponding to the relevant signaling message of the packet-switched sessions of circuit switching signaling message, but the content of in packet-switched sessions, not carrying the circuit switching signaling message.As mentioned above, correspondingly realize being used to carry out adaptive different embodiment.

This method comprises another step (S150) at last: the access controlling call entity from be included in swap server (200) provides entity that circuit-switched call and/or service are provided to the service that comprises terminal installation (300) via the first interworking entity and the second interworking entity.Being noted that swap server provides to be connected by circuit switching with swap server to the terminal installation (300) that is connected by IMS (30) provides it to by circuit switching connecting system (40-1 ... 40-n) the terminal that is connected (400-1 ... 400-n) identical circuit-switched call and service.Because method of the present invention, swap server (200) can be to terminal installation (300) the transfer circuit switched call and/or the service that are connected by the IMS (30) that communicates via packet-switched sessions, and its mode is connected to by circuit switching connecting system (40-1 via circuit switching with it ... 40-n) be connected to the circuit-switched terminals (400-1 of swap server (200) ... 400-n) transmit same circuits switched call and/or serve identical.

Therefore, method of the present invention is achieved as follows advantage: circuit-switched call and/or service directly are provided, and do not lose functionally, this situation can produce from the known technology of the prior art that relies on additional interworking unit originally.Certainly, method of the present invention also provides other advantage, described in general introduction of the present invention.

Be noted that above-mentioned steps need not carry out according to order disclosed herein.In fact, when when coming operating procedure with different order shown in Figure 2, this method works too and realizes identical advantage and technique effect, as long as each operation of the step of described method at least once.

According to an alternative embodiment of the invention, the signaling message of packet-switched sessions meets session initiation protocol SIP or meets the session initiation protocol (SIP-I) with encapsulation ISDNYong Hubufen.

The advantage of described realization is, can be easy to re-use through standardized Session Initiation Protocol for IMS, and need not to realize specific protocol.But the present invention is not limited to Session Initiation Protocol, because the use of different agreement also is possible, as long as described agreement is fit to handle the signaling message that is associated with packet-switched sessions.Therefore, may exist wherein can realization with SIP or SIP through revising the situation of the different agreement of agreement, wherein wish to realize some functional or purpose.

In another embodiment of the present invention, the step that provides correspondent entity for swap server also therein swap server comprise under those situations of Mobile Switching Center Server (MSC-S) or telephone swap server and carrying out.To specifically these specific embodiments be described after a while in this manual with reference to Fig. 6 and Fig. 8.

In another realization of the foregoing description, swap server can comprise SoftSwitch.This also is conspicuous with reference to Fig. 6 and Fig. 8 hereinafter this specification especially.

For example, method of the present invention applicable to communication network comprise among Fig. 1 and to adopt (40-1 ... 40-n) represented one or more circuit switching connecting systems.These connecting systems can comprise one or more in GSM, UMTS, LTE, CDMA or its evolution, but can also comprise the another kind of circuit access network such as POTS or ISDN.According to another realization, insert controlling call entity (250) and use predetermined controlled routine by circuit-switched call and/or circuit switched service via described one or more connecting system controls according to method of the present invention.Described controlled routine is to be used to manage carry circuit-switched call and/or serve required connection and processing and management to by described circuit switching connecting system (40-1 ... 40-n) one of them institute's connecting terminal provides the circuit switching of circuit-switched call and/or service to connect the routine of relevant circuit switching signaling message.In one example, controlled routine realize being used to setting up, keep and discharge is connected, the registration of processing terminal and/or position, terminal for those situations that move under office terminal ambulant functional, and according to as above also described in this manual similar manner.We notice, move not to be meant wirelessly, and just finger device is movably and in case moves the fact that just can be connected to network.Therefore, laptop computer or PDA are non-limiting examples.

In this concrete example of method of the present invention, insert controlling call entity (250) and also be arranged to by using identical predetermined controlled routine via the circuit-switched call and/or the circuit switched service of the first interworking entity and/or the control of the second interworking entity.In other words, in this specific implementation, and because step provided by the present invention, need not under the situation about further revising, the same controlled routine that can be usually be used for circuit-switched call and/or service by the circuit switching connecting system is used for processing and is sent to circuit-switched call and/or the service that is connected to the terminal installation (300) of swap server (200) by IMS (30).

The advantage that is provided is, can need not the heavy modification of swap server and serves the terminal installation that inserts swap server from broadband networks such as for example IMS.Therefore, can need not other modification and use the core functionality of swap server.

Said method is realized above-mentioned advantage and is also had whole advantages of having described in the general introduction of the present invention at least.

Referring now to Fig. 3, Fig. 3 illustrates other details of the swap server (200) according to one embodiment of the present of invention.Fig. 3 represents that swap server (200) carries out the part of the communication network (10) of interface with it, and purpose provides the clear expression of a kind of mode that realizes swap server of the present invention (200).But, be noted that the entity that carries out mutual network (10) with swap server (100) is not limited to the feature of swap server (200).In other words, swap server (200) is alone one embodiment of the present of invention.

Be adapted at realizing in the communication network (10) according to swap server of the present invention (200), wherein communication network (10) comprises internet protocol multimedia subsystem (30) and one or more circuit switching connecting system (40-1 ... 40-n), the identical consideration of carrying out with reference to Fig. 1 and method of the present invention is still effective to it.Swap server (200) also comprises signaling entity (210), and signaling entity (210) is included in again and inserts in the controlling call entity (250).Signaling entity (210) is used for by the access side and via circuit switching connecting system (40-1 ... one or more terminal (400-1 that communicate 40-n) ... 400-n) exchange the circuit switching signaling message that relevant circuit switching connects.Signaling entity is to be fit to handle the entity that is used to manage connection, state of user, the signaling on a large scale of service or the like is provided.The identical consideration that above-mentioned signaling is carried out here and still effective for the remainder of this specification.In one example, the suitable execution with the registration or the position of terminal of signaling entity upgraded relevant function.The position upgrade can comprise primary importance upgrade-or the registration of terminal when first of circuit switching connecting system connects-but can comprise that also period position upgrades, perhaps whether still movable and be connected to network or whether because of any former thereby from the function of any similar kind of network disconnection at the connection status of checking terminal, for example terminal.According to another example, be that signaling entity also can comprise the function relevant with switching controls under those situations of portable terminal in terminal.In terminal is under portable terminal and mobile those situations, and signaling entity (210) also can comprise and is used for management by described circuit switching connecting system (40-1 ... 40-n) the ambulant function of the terminal that one of them connected.In wireless network, the mobile change Serving cell that means.But, in this description, will describe after a while, same concept also can be effective for the terminal that connects by cable network.In general, the suitable processing of signaling entity makes circuit-switched call and service can be used those the required signaling messages of terminal.The access controlling call entity (250) that comprises signaling entity (210) is provided for handling by signaling entity (210) and offers terminal (400-1 via the circuit switching connection ... circuit-switched call 400-n) and/or service.Insert controlling call entity (250) and comprise function or the control routine that is used to provide service.For example, function or control routine can with handle join dependency.Example is to set up, keep or discharge to connect, and wherein management is used to the connection that circuit-switched call is provided or is used to provide service.Term in this specification " calling " or " circuit-switched call " refer to audio call and data call.The service of the available all kinds of circuit-switched network estimated to refer to once more thus in term " service ", comprises calling, text message (for example SMS in the GSM network), fax services, (for example calling transfer, Call Waiting and so on) calling related service or the like.Insert controlling call entity (250) and correlation between the signaling entity (210) make access controlling call entity (250) can by with signaling entity (210) come treatment circuit switched call and/or service alternately.Signaling entity (210) management provides circuit-switched call and/or serves required signaling message.

According to an alternative embodiment of the invention, insert controlling call entity and also can realize relevant or expect someone's call using the signaling of other type of being correlated with for example calling transfer with the supply of serving.In other words, the correlation between access controlling call entity (250) and the signaling entity (210) is represented the circuit-switched call of being managed by access controlling call entity (250) and/or is served according to being set up, keep or discharged by the handled necessary signaling of signaling entity (210).In other words, management circuit switched call and/or serve required signaling and carry out by signaling entity (210).

Be noted that according to another example swap server of the present invention (200) also be fit to handle the service of other type, as the network service.Example of network service with account, network management or network operation be relevant with operation, wherein said network service can interrelate with circuit-switched call being provided and/or serving required signaling.

That has mentioned as mentioned is the same, and signaling entity (210) comes switched circuit exchange of signaling message by inserting side (220).Insert the interface of side (220) expression signaling entity, described interface exchange estimates to be sent to the circuit switching signaling message of the terminal that communicates via the circuit switching connecting system.

Access controlling call entity (2050) also can comprise and being used for and other communication network (50-1 ... 50-n) carry out the network side (260) of interworking.In other words, the access side (220) of signaling entity (210) is provided for and the terminal switch signaling that is connected by the circuit switching connecting system, and inserts network side (260) the permission access controlling call entity (250) and other communication network (50-1 of controlling call entity (250) ... 50-n) carry out interworking.Be noted that network side (260) and with other communication network (50-1 ... 50-n) carrying out the ability of interworking can be from swap server, omit from method of the present invention or from system of the present invention, because it is not an essential part of the present invention.In fact, obviously and directly be, when carrying out the ability of interworking when the network side that omit to insert controlling call entity and with other communication network, also can realize with this specification in described in the whole text identical advantage.In the present embodiment and in Fig. 3, the interworking of main expression and other communication network is so that clearly explanation can be at network (50-1 ... 50-n) and the interworking of carrying out between the swap server (200) and carry out between terminal installation (300) and the swap server (200) adaptive between difference.Network (50-1 ... 50-n) and some standards of the interworking between the swap server (200) realize it being known in the art, the same as describing in other for example relevant with Mobile Switching Center Server (MSC-S) embodiment, wherein the interworking between VoIP and the circuit-switched voice call is at network (50-1 ... 50-n) and between the network side of the access controlling call entity (250) of swap server (200) handle.When omitting the network side (260) of swap server, mean the interworking that does not need with networks of different type.

Another embodiment according to swap server (200), the access side of signaling entity (210) can be suitable for going up processing signaling at user-to-network interface (UNI), and the network side of access controlling call entity can be adapted at upward execution signaling of network to network interface (NNI).Again, the interworking on network to network interface is not an essential part of the present invention, and can be omitted, and this also is conspicuous from above-mentioned consideration.

The interface entities (230) of implementing swap server of the present invention (200) is used in the access side of signaling entity and is connected to via internet protocol multimedia subsystem (30) between the terminal (300) of exchange (200) carrying out interface.Interface entities (230) also is arranged at the circuit switching signaling message that connects about the circuit switching of signaling entity and is used for carrying out interworking between the signaling message about the packet-switched sessions of the terminal (300) that is connected to swap server (200) via internet protocol multimedia subsystem (30).In other words, carry out interface between interface entities (230) access side (220) that is adapted at signaling entity (210) and the terminal (300) that is connected via IMS (30).Interface entities (230) is also carried out by swap server (200)-more particularly and is by signaling entity (210)-handled circuit switching signaling message and changes interworking between the signaling message that is associated with packet sessions, promptly adaptive into, and wherein packet sessions is the session of setting up via IMS (30) and terminal installation (300).

Therefore, swap server of the present invention (200) can provide to the terminal installation (200) that is connected to swap server (200) via IMS (30) and offer usually via circuit switching connecting system (40-1 ... 40-n) be connected to the same circuits switched call and/or the service of the terminal of swap server (200).

An advantage of the swap server of present embodiment is, circuit-switched call and/or service can directly offer terminal installation (300), and the core texture (for example signaling entity (310) and access controlling call entity (250)) that need not swap server is used any modification.In addition, directly transfer circuit switched call and/or service of swap server (200), and need not to have any complementary network device that need carry out interworking originally.

In addition, swap server (200) according to an alternative embodiment of the invention also provides the advantage that does not require in the interworking of network level because the interworking of signaling or adaptive directly as the swap server (200) of network equipment with execution between as the terminal installation (300) of user's set.In above-mentioned modification, swap server (200) is implemented in the user-to-network interface rather than carries out the advantage of adaptive or interworking on network to network interface, thereby adaptive being easier to realized, this does not suffer the shortcoming of low scalability and high maintenance cost, and these shortcomings result from by the interworking solution of complementary network device originally or result from the interworking of carrying out or adaptive on network to network interface.

In another embodiment of swap server, insert controlling call entity (250) be provided for according to described circuit switching connecting system (40-1 ... one or more access control protocols of the one or more circuit switching connecting system association 40-n) are communicated by letter with the calling of terminal control.The circuit switching signaling message that interface entities (230) is arranged to it is carried out interworking meets the one or more of described at least access call control protocol.This means that signaling message can form the subclass of the message of described access call control protocol.This has does not need to revise the advantage that inserts controlling call entity, because the agreement that has realized might be used to be sent to the signaling of wide-band terminal (300).Specifically, this solution alternatively can realize in swap server (200), and need not to realize the access side that inserts the network side of controlling call entity and/or need not the reference signaling entity.

Above-mentioned access control protocol for example comprises that directly transmission uses subdivision agreement, radio access network applying portion agreement, base station system management and use one or more in the agreements such as subdivision agreement, ISDNYong Hubufen agreement.But other agreement also is fit to the realization among the present invention, that is, not only relevant agreement with GSM or ISDN, as long as they manage to provide and applicable to environment or the above other network in described agreement same or analogous functional.

In another embodiment, come the swap server switched circuit exchange of signaling message of switched circuit exchange of signaling message, for example location update message and/or mobile management message by the access side of signaling entity.

In another embodiment of swap server, interface entities is arranged between the User Network Interface circuit switching signaling message about described signaling entity carries out interworking, and the network interface signaling message is used for packet-switched sessions about described terminal.In other words, be fit to carry out interworking or signaling is adaptive according to the swap server of this embodiment by the signaling message that interface entities (230) is exchanged based on direct and user.In one example, this can go up at User Network Interface (UNI) and carry out.Be noted that this interface and swap server (200) and the network (50-1 that simplify by reference number 32 among Fig. 3 once more ... the interface difference that realizes 50-n), it is exchange of signaling message between network element.In one example, these message are being passed through reference number 52-1 ... the network to network interface (NNI) of 52-n illustration in Fig. 3 is gone up exchange.The advantage of these realizations is, the present invention does not rely on any additional or external network device to realize interworking, and functional loss does not take place, because it is used to make the original function set can be the user by User Network Interface.Obviously, other advantage of all described in this specification also is applicable to present embodiment.

According to another embodiment of swap server, interface is provided for being embedded between the signaling message of circuit switching signaling message that circuit switching connects and packet-switched sessions by message maps and/or message and carries out interworking.Aspect this, the identical consideration of carrying out as reference institute implementation method is suitable for.Mapping or other details that embeds also will providing with the lower part at this specification.

In another embodiment of swap server, the signaling message of packet-switched sessions meets known protocol, for example session initiation protocol SIP or have the encapsulation ISDNYong Hubufen session initiation protocol, SIP-I.But specific protocol that the present invention is not limited thereto is because suitable any other known protocol of handling the signaling that is associated with packet-switched sessions is fit to the realization among the present invention.Advantage is, increases the existing reusability of realizing.But, the present invention also is not limited to known protocol, because also can predict the modification of agreement newly developed or existing protocol, particularly the introducing of the modification of New Deal or existing protocol therein can improve under some functional those situation relevant with the processing of packet-switched sessions.And the agreement of any kind of is suitable for the realization among the present invention, as long as it is fit to handle packet-switched sessions.

In another embodiment of swap server, swap server comprises Mobile Switching Center Server (MSC-S) or telephone swap server.

In addition, the swap server according to another embodiment can comprise SoftSwitch.

According to another embodiment, swap server is suitable for comprising the realization in the communication network of circuit switching connecting system, and wherein the circuit switching connecting system comprises for example network of GSM, UMTS, LTE, CDMA or its evolution or the like.In other words, swap server can be realized in the communication network of the wireless network that comprises the Access Network that connects as circuit switching.This realization also is not limited to the wireless access network of realizing that circuit switching connects, but the wired access network that provides circuit switching to connect can also be provided.

According to another embodiment of swap server, the network side that inserts controlling call entity is adapted at the signaling session that is connected with the packet switching of other communication network on the network to network interface and/or the circuit switching signaling message of circuit switching connection carries out interworking.According to this realization, swap server (200) can arrive other network (50-1 ... on network to network interface 50-n) the circuit switching connection with carry out interworking between packet switching is connected.This means, swap server (200) can with the heterogeneous networks exchange of signaling message that service is provided by packet-switched sessions.For example, swap server (200) can with VoIP service provider or with the network provider Exchange Service that services such as Skype for example are provided.With heterogeneous networks (50-1 ... this interworking 50-n) is not an essential feature of the present invention, and it obviously can omit.But, when being implemented, it provide strengthen swap server also with the advantage of the interworking possibility of other network.

The access controlling call entity (250) of swap server (200) can be arranged to the predetermined control routine is applied to by circuit switching connecting system (40-1 ... the circuit-switched call and/or the circuit switched service of the one or more circuit switching connecting system controls 40-2).Inserting controlling call entity (250) also can be arranged to the predetermined control routine is applied to circuit-switched call and/or circuit switched service via interface entities (230) control.In other words, circuit-switched call access control (250) is arranged to come the application controls routine by the circuit switching connecting system usually, wherein control routine relates to multiple function, for example treatment circuit exchange connect, set up, keep and discharge that circuit switching is connected, (position such as the registration of terminal, terminal upgrade (first and periodically) etc.) by circuit switching connecting system (40-1 ... mobile management under the management that terminal 40-n) inserts, the situation that terminal is portable terminal or the like.According to this example, swap server (200) can also be applied to identical predetermined control routine be connected to the terminal (300) that inserts controlling call entity (250) by interface entities (230) (that is, by the broadband network based on packet-switched sessions) via IMS (30).The advantage that above also illustrates is, inserts functional those terminal installations that also are used further to insert by the packet switching Access Network for example terminal installation (300) etc. of swap server that existed in controlling call entity (250) and the signaling entity (210).

According to an embodiment of swap server, insert controlling call entity and be provided for the packet-switched speech communication of processing via interface entities (230).An example of packet-switched speech communication is VoIP.But the present invention is not limited to VoIP, because other agreement is possible, as long as they are fit to come transferring voice with grouping.

Service that is provided by swap server (200) or by swap server (200) or circuit switched service comprise the multiple service such as text message service.An example of text message service is the SMS in the GSM network.But the present invention is not limited to the SMS service, but the communication of text messages service that is fit to transmit any kind, as long as described service can provide text to the user.Other example is Email, with fax of text message conversion or the like.

Referring now to Fig. 4, an alternative embodiment of the invention is shown, is used for providing the communicator (300) of service to the user.The identical consideration of more than carrying out also is effective for the device of Fig. 4.For example, service can belong to any kind of shown in reference enforcement method of the present invention or swap server.Communicator (300) is fit to insert swap server (200) via internet protocol multimedia subsystem (30), and comprises that service provides unit (310), session termination unit (320) and interworking unit (330).

It is used that service provides unit (310) to make the circuit exchanging telephone service can be the user by the circuit switching signaling message with the circuit switching join dependency.In other words, service provides unit (310) to realize suitable function in communicator (300), makes the user of communicator (300) can utilize circuit switching to connect typical and those services that handle by the circuit switching signaling message usually of network.

Session termination unit (320) is fit to the termination signaling message relevant with packet-switched sessions.

Interworking unit (330) is adapted at being sent to service and provides between the relevant circuit switching signaling message of the circuit-switched messages of unit (310) signaling message relevant with the packet-switched sessions that is sent to session termination unit (320) and carry out interworking.In other words, interworking unit (330) can be considered to be adapted at service provides the unit that carries out interworking between the handled circuit-switched messages in unit (310) and the relevant signaling message that changes the packet-switched sessions of being handled by session termination unit (320).

The example of terminal installation (300) can be personal computer, laptop computer, PDA, set-top box, adsl router or can connect any device that is connected with the internet by accesses such as for example ADSL connect.ADSL connects expression inserts swap server (200) by IMS network (30) parts.Can use other device, as long as they can connect by ADSL or by other access technology, that is, wired or wireless Access Network all is the possibility that is used for inserting by IMS (30) swap server (200).

Terminal installation (300) provides following advantage: it is used to make same services can be the user, is connected by the circuit switching connecting system as the user.In other words, circuit-switched call or service are offered the user pellucidly, and the user does not experience any difference because of the existence of IMS.This improves user's reliability of applying and impression and sensation.

In addition, make the exploitation of the application that circuit-switched call or service are provided on the terminal (300) easier.In fact, be used for terminal (400-1 ... identical kernel software 400-n) or application routine can be used further to terminal (300).

Other advantage that is listed in this description also is applicable to terminal installation of the present invention.

Referring now to Fig. 5, illustrate according to an alternative embodiment of the invention, be used for providing the system of service at communication network.Communication network shown in this Fig (10) comprises internet protocol multimedia subsystem (30) and one or more circuit switching connecting system (40-1 ... 40-n).System comprises swap server (200) and terminal installation (300).Swap server (200) and terminal installation (300) can comprise respectively Fig. 3 and shown in Figure 4 and above-described those.But, be not to need its all functionality, describe below.

Swap server (200) comprises access controlling call entity (250), and access controlling call entity (250) is provided for handling by the circuit switching signaling message and offers via circuit switching connecting system (40-1 via the circuit switching connection ... one or more circuit switching connecting systems 40-n) are connected to the terminal (400-1 of swap server (200) ... circuit-switched call 400-n) and service one of them or both.In other words, swap server (200) can be by inserting controlling call entity (250) to via circuit switching connecting system (400-1 ... 400-n) terminal (300) that is connected to swap server (200) provides circuit-switched call or service.

The terminal (300) that is included in the system is connected to swap server (200) via internet protocol multimedia subsystem (30).Communication network also is fit to circuit-switched call is provided and serve one of them or both to terminal installation (300).In other words, communication network is fit to the terminal (400-1 that is connected to swap server (200) via the circuit switching connecting system ... 400-n) provide circuit-switched call or service, and be fit to simultaneously to the terminal installation (300) that is connected to swap server (200) by internet protocol multimedia subsystem (30), therefore to circuit-switched call or service can be provided by the terminal installation that the packet switching Access Network connects.

The terminal installation of system (300) also comprises: service provides entity (310), and it is used to be used for making circuit-switched call and service one of them or both can be the user by the circuit switching signaling message with the circuit switching join dependency; And the first interworking entity (330), be used for carrying out interworking being sent between the circuit switching signaling message that the inserts controlling call entity signaling message relevant with the packet-switched sessions that is sent to internet protocol multimedia subsystem.In other words, terminal installation comprises: be used to make circuit-switched call or service to can be the used suitable function of user; The first interworking entity (330) is used for the signaling message that the circuit switching signaling message that is associated with circuit-switched call or service is relevant with the packet-switched sessions of the packet-switched sessions of related internet protocol multimedia subsystem and carries out interface.

The swap server of system (200) also comprises internet protocol multimedia subsystem (30) and inserts the second interworking entity (230) between the controlling call entity (250), and wherein the second interworking entity (230) is provided for carrying out interworking between the relevant signaling message of the packet-switched sessions that is sent to internet protocol multimedia subsystem (30) and the circuit switching signaling message that is sent to access controlling call entity (250) on the contrary with the first interworking entity.In other words, swap server comprises the second interworking entity, and it carries out the opposite interworking of interworking performed with the first interworking entity of terminal installation.

In implementing system of the present invention, terminal installation (300) and swap server (200) comprise the corresponding controllers entity, be used to set up packet-switched sessions, and be used for providing entity to provide circuit-switched call and service one of them or both from the access controlling call entity that is provided for circuit switching and is connected to the service of terminal installation via the first interworking entity and the second interworking entity by the first interworking entity and the second interworking entity institute termination.In other words, terminal installation and swap server are fit to setting up packet-switched sessions between them by the first interworking entity and the second interworking entity, and are arranged so that circuit-switched call and service directly offer terminal installation from swap server by the first interworking entity and the second interworking entity.

System of the present invention realizes advantage as described in this manual.

Referring now to Fig. 6, one embodiment of the present of invention that swap server (200) wherein comprises mobile SoftSwitch (MSC-S) are shown.

The functional mobile SoftSwitch (MSC-S) that strengthens that adopts termination IP MM SIP to be connected with SIP-I.Therefore, mobile SoftSwitch can be connected to the IMS core network, and need not to handle required additional gateway of interworking or application server.

Also strengthen mobile SoftSwitch (MSC-S), so that handle the arrowband portable terminal signaling visit that is connected with SIP-I by IP MM SIP.

Can see that in Fig. 6 MSC-S comprises the entity 630 that is used to carry out calling control and service interworking.This entity comprises carries out function adaptive at network level.This entity can realize by hardware, software or their any combination, and can be included in the unit or be distributed in some unit.This considers that for disclosed all entities in this specification be effectively, and is not only with reference to this example.

MSC-S also comprises and handles for example entity 620 of agreement such as ISUP, BICC, SIP-I NNI.This entity comprises the management and the adapting function of series of protocols such as for example ISUP, the BICC that are used on the network to network interface (NNI), SIP-I.This entity can for example comprise and being sent to/adaptive from the SIP signaling of other network.In one example, this entity can comprise adaptive according to 3GPP 29.163 standards.In addition, this entity can comprise realize in the current externally additional interworking node functional part or all of in another embodiment of the present invention.

Entity 610 (SIP NNI) is used to carry out specific adaptive with SIP network-to-network agreement.In one example, this entity is carried out adaptive to SIP service provider.

Entity 645 expressions are used for going up execution and the adaptive of sip user and the entity of communicating by letter at User Network Interface (UNI).Entity 640 (sip user is called out control and service) indication is used to adjust the SIPUNI signaling so that it can carry out mutual entity with entity 630, entity 630 is managed the interworking of the function relevant with service with calling out control again, and wherein adaptive or interworking is carried out between heterogeneous networks.Be noted that entity 640 or 610 can not directly provide circuit-switched call or service, but need simulation by entity 630 and/or adaptive.This solution can't provide advantage of the present invention, for example with the uniform reliability of ifq circuit switched call and service, identical impression and sensation or the like.

Entity 610,620 and 630 or their part be the entity that the network insertion side 260 with the swap server 200 of Fig. 3 communicates in one example.In another example, entity 610,620 and 630 can be the part of network insertion side 260 of the swap server 200 of Fig. 3.

Entity 650 is used to provide control and the service of calling out that insert of moving.In one example, entity 650 is included in the access controlling call entity 250 of swap server 200 of Fig. 3.Entity 650 for example comprises with Call Waiting, handles service such as SMS, handles mobile management, (first and periodic) or the like relevant functional upgraded in the position.

Entity 654 for example is used to handle agreements such as GSM DTAP, and calls out control and service entities 650 carries out interface in a side with moving to insert, and the entity 655 that is used for the interface that communicates with BSC in opposite side and conduct carries out interface.Therefore,

entity

654 and 655 is entities of communicating by letter of be fit to allow move insert calling out between control and service entities 650 and the GSM Access Network.The GSM Access Network is included in the circuit switching connecting system 40-1 of Fig. 1, Fig. 3 or Fig. 5 in one example ... among one of 40-n.Therefore,

entity

654 and 655 is to be responsible among the MSC-S allowing from the entity of GSM Access Network to the access of entity 650.

Similarly,

entity

660 and 665 is fit to allow insert the access of calling out control and service entities 650 from the UMTS Access Network to moving.The UMTS Access Network is the connecting system 40-1 of presentation graphs 1, Fig. 3 or Fig. 5 in one example ... 40-n one of them.In more detail, entity 660 is used to handle for example agreement such as UMTS RANAP.Entity 665 is used for carrying out interface with RNC.

Allow from moving the group of the entity that inserts the access of calling out control and 650 pairs of connecting systems of service entities at the entity 654,655 of a side and in the group of the entity 660,665 of opposite side.In one example, according to an example, these entity groups are included in the swap server 200 of the present invention, are used for allowing to connecting system 401 ... the access of the one or more connecting systems among the 40-n.

As mentioned above, entity 670 is fit to handle the GSMDTAP agreement of GSM DTAP agreement or modification.Entity 675 is used for carrying out interface with the IMS

core network.Entity

670 and 675 be responsible in one embodiment to embed sip message or in sip message the DTAP message of tunnel transmission seal off.In another embodiment, these entities are responsible for mapping reconciliation mapping DTAP message and sip message.In another embodiment, their carry out seal off/encapsulate and shine upon/separate the combination of mapping.In other words,

entity

670 and 675 is responsible for adjusting moving and is inserted original signaling of calling out control and service entities 650 and the original signaling that is exchanged by IMS core network interface 675 and IMS network.In one example, the appropriate combination of entity 670 and 675-or its a plurality of parts-can be included in is implemented in the interface entities 230 of swap server 200 of the present invention.

Adopt label 64-1 to represent the connection to the user via BSC.In one example, connecting 64-1 can be included in reference to Fig. 1, Fig. 3 or one of them described connection 42-1 of Fig. 5 ... among one of 42-n.Similarly, in one example, connect 64-2 and be included in reference to Fig. 1, Fig. 3 or one of them described connection 42-1 of Fig. 5 ... among one of 42-n.Adopt the connection shown in 63 to schematically show from MSC-S to connection by the terminal that IMS connected.In one example, connect 63 be included in reference to Fig. 1, Fig. 3 or Fig. 5 one of them described via IMS 30 from swap server 200 to terminal 300 the connection 32.In another example, the user can be connected to interface entities 675 by connecting or ePON (the several examples that provide by the access of IMS only are provided) access network via ADSL.

One of advantage of this embodiment is, moves and inserts service or the calling that calling is controlled and service entities 650 can provide identical type to the terminal or the client of any kind.Specifically, it can be to providing and the identical circuit-switched call and the service that offer GSM or UMTS terminal and user thereof originally usually by terminal or client that IMS connected.Obviously, all other advantages of the present invention also are applicable to present embodiment.

For the remainder of MSC-S, handle according to inserting identical mode with any other portable terminal by the access of IMS core network interface.Because calling out control and service logic is common for the IP MM access based on GSM, UMTS and DTAP/BSSMAP, so entirely serve the interworking generation, and no matter how insert.

With reference to the MSC-S of Fig. 6, note following aspect.Irrelevant with the present invention, SIP UNI, SIP calling control and service and SIP NNI interface can be used as independent logic and are present among the MSC-S.The original SIP that this logic allows sip user to receive from MSC-S serves.By other logic, MSC-S also can provide the interworking between sip user and other service in MSC-S.These functions or its part for example can be included in the entity 610,640,645.But, be noted that these parts or entity are not parts of the present invention, and can be omitted.

Referring now to Fig. 7, an example of IP MM subscription client (700) is shown.According to this example, portable terminal can be simulated or show as to the broadband client (700) with IP MM session support, and use mobile SoftSwitch voice with other service, as SMS.This simulation IP MM SIP with carry out pellucidly on SIP-I is connected and to it.Should be noted that simulation is not strict necessary.In fact, the broadband client can realize that common realization of portable terminal (for example GSM phone) is used to make calling and service to can be the whole set or the subclass of the used application routine of user.Like this, the user has impression identical with GSM user and sensation, and simplifies the exploitation of software and/or hardware.

Subscription client 700 comprises VoIP and multimedia interface 710, and VoIP and multimedia interface 710 is fit to be provided for providing to the user interface of service such as VoIP for example.

Subscription client 700 comprises that also being used for carrying out interface with other network communicates by letter or the entity 720 of multimedia communication with exchange VoIP.

Entity 740 but be fit to carry out interface by session and IMS core network according to packet switching communication.In one example, entity 740 is included in the session termination unit 320 of the reference described terminal installation 300 of embodiment shown in Figure 4.

Entity 730 is fit to handle the subclass of agreement such as DTAP or BSSMAP for example or these agreements.In one example, this entity comprises common all routines that realize or functional in GSM or UMTS terminal.In one example, entity 730 is included in the identical API that realizes on GSM or the UMTS terminal.In one example, right/from sip message mapping or separate mapping DTAP and BSSMAP message.In another example, DTAP and BSSMAP message are embedded, are encapsulated in the sip message or tunnel package in sip message.In essence, in this example, the inverse operation that entity 730 is carried out by

interface entities

670 and 675 performed operations.In one example, entity 730 is included in the interworking unit 330.

In another example, entity 730 and 740-or its suitable part-be contained in or be distributed in reference to enforcement the present invention and in described session termination unit 320 of the terminal installation shown in Fig. 1, Fig. 3, Fig. 4 or Fig. 5 and interworking unit 330.In other words, embedding or shining upon part not necessarily needs to be included in the entity 730, but can be distributed in routinely in

entity

730 and 730, as long as their carry out the entity 670 of MSC-S shown in Figure 6 and 675 inverse operation.

IP MM subscription client when this embodiment strengthens broadband access is so that simulate or show as the other end that seems DTAP/BSSMAP subclass as shown in Figure 7.As an alternative that realizes the DTAP/BSSMAP subsystem, but enhanced IP MM subscription client is to realize the RANAP subclass.

The advantage of subscription client is, the identical routine of standard GSM or UMTS terminal and functionally can be used further to subscription client.Therefore, the user of client 700 will experience identical impression and the sensation and the identical functions of user of calling out and serving with typical GSM or UMTS.Obviously, other advantage of the present invention also is applicable to subscription client 700.

The IMS core network is used to provide access integrality (client certificate, fail safe or the like) and conduct about whether calling the decision-point of mobile SoftSwitch service.For this reason, do not need increased functionality, do not need the application server support yet the IMS core network.This provides another advantage of the present invention.

All aspects of mobile voice service and related service are handled by mobile SoftSwitch (MSC-S), thereby re-use existing the realization in mobile SoftSwitch.

Referring now to another embodiment, wherein swap server comprises Mobile Switching Center Server (MSC-S) part.MSC-S partly is included in the mobile SoftSwitch.According to this embodiment, provide two kinds of enhancings to MSC-S:

-with BSC and RNC interface concurrent ground and the IMS core network interface of operating according to similar manner;

-can send and receive the mobile phone interface of the modification of message from above-mentioned IMS core network interface.The mobile phone interface of revising is realized the subclass of GSM DTAP/BSSMAP, and support call control and other circuit switched service.As an alternative of subclass, can use the subclass of RANAP with DTAP/BSSMAP.

According to this embodiment, provide to comprise the SoftSwitch of MSC-S described with reference to Figure 6.

Embodiments of the invention also rely on the availability and the treatment S IP session as shown in Figure 8 for the integrality of protecting wide access of standard I MS core network.Network shown in Figure 8 is an example of general networking shown in Figure 1.Terminal installation (being the 3G terminal on top, the laptop computer of left side central portion, the LTE terminal of bottom, left side) in Fig. 8 left side is the example of terminal shown in Figure 1.The MSC-S of Fig. 8 can be included in the swap server (200) of Fig. 1.The IMS of Fig. 8 provides session control and user ID, but is not used in the service of MSC-S voice usually.Usually need SIP interface (not being ISC) with from another network, for example the MSC-S from GSTN shown in Figure 8 carries out interworking.

Embodiments of the invention can also be realized by phone SoftSwitch (TSS).In this case, and if be required so that preserve wired market service, IP MM subscription client and can realize wired DSS1 subclass then to the enhancing of TSS, rather than realize the DTAP/BSSMAP subclass.This makes and might make IP MM subscription client insert the DSS1 service identical with any other DSS1 subscriber, comprises that market is adaptive.

The realization of using DTAP/BSSMAP to realize the operation of the service of moving in broadband access is described below.

By configuration data, indication IMS core network allows SIP and the SIP-I signaling between subscription client and the MSC-S.

At the place that begins of MSC-S, perhaps as the result of operation and maintenance process, MSC-S himself is known to the IMS core network by carrying out authentication and registration according to standard I P MM process, making.

Therefore, it is that the IMS core network is visible that MSC-S becomes, and the IMS core network can be to MSC-S with from MSC-S route SIP and SIP-I message.

Between IP MM subscription client and the IMS core network and the message between IMS core network and the MSC-S send as SIP and/or SIP-I message.DTAP/BSSMAP message between IP MM subscription client and the MSC-S embeds in the SIP-I message according to following table 1 thus.Be noted that according to embodiments of the invention this is an example of the interworking of being carried out by the first interworking entity (330) of terminal installation (300) and by the second interworking entity (230) of swap server (200).Below mapping also can realize in the entity of the MSC-S of Fig. 6 and on the subscription client 700 at Fig. 7.

Table-message maps

Fig. 9 represents to register the relevant stage with the IP MM subscription client as portable terminal.When the user want on the mobile network when broadband access can reach (again referring to Fig. 9):

1. the user activates IP MM subscription client, and by standard I P MM process, at first certified and registration in the IMS core network of user.

2.IP the MM client then asks the IMS core network to use the address of MSC-S to set up the SIP session, and indication will be used to identify this user's circuit switching number.

3.IMS core network uses standard I P MM process to verify this request, and the data of preserving in the route IMS core network.Based on the checking result, IMS core network or the SIP that allows this request and be established to MSC-S connect, and perhaps refuse this request.

4. when the Incoming SIP connection request that receives from the IMS core network, MSC-S sets about calling the position updating process of mobile subscriber.

5. do not wish to rely under the situation of the authentication undertaken by the IMS core network and integrity protection at MSC-S, as an option, MSC-S can carry out the authentication of IP MM subscription client and call decoding to it.

6.MSC-S the HLR of inquiry subscriber data, and this subscriber of registration is permitted in request.Under the situation that does not allow to register at HLR, MSC-S refuses position updating request.

7. from the success response of LR the time, MSC-S registers the subscriber, indicates the subscriber can reach in circuit switched core network thus, and upgrades success message to IP MM client loopback location.

8. do not wish to keep under the situation of SIP session at MSC-S, MSC-S is to the release of IMS core network initiation SIP session, and the IMS core network sets about discharging the SIP session of being sent to IP MM subscription client.

Be easy to know that subscription client is treated as arm's length standard GSM terminal by MSC-S.

Figure 10 illustrates and the IP MM subscription client relevant stage of mobile originating.When the user wishes originating call, carry out following operation:

1. under situation about having set up to the SIP session of MSC-S, when for example upgrading, use this SIP session in the position by the IMS core network.Otherwise IP MM subscription client and IMS core network are set up the new SIP session that is directed to MSC-S.

2. do not wish to rely under the situation of the authentication undertaken by the IMS core network and integrity protection at MSC-S, as an option, MSC-S can carry out the authentication of IP MM subscription client and call decoding to it.

3.IP the MM subscription client sends call setup DTAP message, this message is sent to the IMS core network and is transmitted to MSC-S as SIP-I INVITE/IAM message.

4.MSC-S receipt of call is set up message, and it is verified.When good authentication, the call accepted request of setting up, and the signaling of carrying out sending network and inserting side is to be accomplished to the call setup of network.DTAP/BSSMAP message is mapped to the SIP-I equivalent messages thus or sends as the SIP-I INFO according to table.

5. by connection the time, order is from the media path of MGw and subscription client.

6. the call charging during calling out and alternately as for other mobile originating among the MSC-S, handling.

7. when end of calling, discharge media path, and notice IP MM subscription client is terminated about calling.

Figure 11 A and Figure 11 B relate to the mobile-terminated calling of IP MM subscription client.When the calling that is directed to the IP MM subscription client of registering at the MSC-S place enters, carry out following operation:

1. during the request of the routing information of the IP MM subscription client of registering in MSC-S receives MSC-S, it provides roaming number to network.Network routes the call to MSC-S thus.

2. when MSC-S received calling from the address with IP MM subscription client of network side, its checked whether there is the SIP session that allows MSC-S to arrive IP MM subscription client.If situation is not like this, then MSC-S request IMS core network uses the tel-URI of this IP MM subscription client to be established to the SIP session of this IP MM subscription client.

3. then, MSC-S sends the paging request to IP MM subscription client in existing SIP session.Do not have at IP MM subscription client under the situation of response or negative response paging request, MSC-S can call by the defined supplemental services that does not respond mobile subscriber of the swap data among the MSC-S.Under the situation that IP MM subscription client is confirmed by the loopback page response, call setup is proceeded.

4. do not wish to rely under the situation of the authentication undertaken by the IMS core network and integrity protection at MSC-S, as an option, MSC-S can carry out the authentication of IP MM subscription client and call decoding to it.

5.MSC-S send call setup DTAP message, this message is sent to the IMS core network and is transmitted to IP MM subscription client as SIP-I INVITE/IAM message.If request is set up in the call accepted of IP MM subscription client, then MSC-S carries out the required signaling to network and subscription client, calls out so that set up.DTAP/BSSMAP message is mapped to the SIP-I equivalent messages thus or sends as the SIP-I INFO according to table.Under the situation of subscription client call not accepted, carry out with for the identical process of other mobile subscriber, that is, and the calling or the like of supplemental services.

6. by connection the time, order is from the media path of MGw and subscription client.

7. the call charging during calling out and alternately as for other the mobile-terminated calling among the MSC-S, handling.

8. when end of calling, discharge media path, and notice IP MM subscription client is terminated about calling.

The present invention can also be applied to the situation that IP MM subscription client portable terminal is cancelled registration.IP MM subscription client is cancelled registration from MSC-S in many cases:

-after long-time inertia, MSC-S order IMS core network is closed the SIP session of any unlatching, and cancel the registration mobile subscriber from MSC-S.

-receive the request of closing the SIP session or when IP MM subscription client receives explicit detach request, MSC-S will close the SIP session and cancel the registration mobile subscriber from the IMS core network as MSC-S.

-when receiving from network, MSC-S cancels when request registration, and MSC-S will order the IMS core network to close the SIP session and cancel the registration mobile subscriber.

Also predict additional operations.If under the situation about exist supporting in the subscription client, can be used for all other services of mobile subscriber, for example start and also be used in the mobile subscriber that is connected in the broadband access with termination SMS, USSD, supplemental services process or the like.

As the other parts of this specification were already mentioned, the present invention comprised wireless and wired access network applicable to multiple Access Network.POTS and ISDN Access Network are the examples of wired access network.When realizing POTS or ISDN Access Network, may need to carry out that some are adaptive.For example, for example function such as mobile management can preferably be adjusted as described below.According to an embodiment, the mobile management that POTS and ISDN insert can be based on the sign that is provided to the ISM core network by subscriber equipment, verified and be transmitted to SoftSwitch by the IMS core network.In an illustrated examples, function can realize through the following steps:

1. subscriber equipment indicates its to handle international numbering 4924012345678 (demonstration telephone number).

2.IMS the core network authentication subscriber equipment is allowed to use this number (according to the existing capability in the IMS core network).

3. when being established to the connection of SoftSwitch, IMS core network indication SoftSwitch should and route the call to this number of this subscriber equipment from this number receipt of call of this subscriber equipment.

4. insert relevant access logic for POTS in wired SoftSwitch with ISDN, this triggers wired SoftSwitch and registers wired subscriber with number 4924012345678 (the demonstration telephone number that above illustrates), and receives and originating call from this subscriber.

But other modification of above-mentioned routine can be possible, as long as they allow from the ambulant management of user's access of cable network.

Re-use the dramatic benefit of generation according to what swap server of the present invention and other swap server service and hardware, for example SoftSwitch voice and other moved SoftSwitch service and hardware according to some embodiment of the present invention, apparent from the below:

Satisfying with mobile phone that-availability, scalability and market and rules and regulations require is in par;

-the hardware that is used to transmit voice service is in and has the competitive price level;

Capacity between-balance broadband and radio insert carries out pellucidly with making an investment in the mobile SoftSwitch, because identical device is used for two types access;

-existing voice the business prototype that comprises the service provider of pre-payment is re-used and is expanded, so that also cover broadband access;

-from work angle, service provider's employee does not need to understand the voice system of handling newtype;

The amount of-the node type that will keep in speech network does not increase (in any case supposition operator all has IP MM system), and this reduces floor space (foot print), wiring, the site requirements that cools off or the like;

-connection does not need Add-ons to upgrade or the upgrading activity for broadband voice;

The independence of-the type broadband access means that it can also provide circuit switched speech service by following mobile broadband standards such as for example LTE, does not wherein have the definition circuit service now;

-allow to wish that the operator that invests is by revising subscriber data in the IP MM network with seamless way migrating subscriber gradually in IP MM and MMtel.For example: the broadband user may be at first by subscription client and insert mobile SoftSwitch by entering among the HSS (entry) after a while, rather than be directed to the MMtel service;

-it provides option for the FMC of broadband and mobile subscriber, because the broadband can both receive identical mobile SoftSwitch service with mobile subscriber;

-being used for authentification of user and being connected the meaning that control and all voice services provide by mobile SoftSwitch at IP MM, realization is simple.Gateway interworking between service logic, application server or IP MM and the circuit domain is not required.

-it allows operator to realize mutual between IP MM and the voice domain as the part of SIP session control and/or subscription client when needed;

Dynamics in-its emulation market, and allow a large number of users client to realize (subscription client is not required).

Above-mentioned advantage also is applicable to according to method of the present invention, swap server, system, terminal installation and some embodiment.

In addition, the present invention is based on the standardization framework and provide voip solution, for example IP MM (IP multimedia), IMS and GSM/3GPP framework for broadband access.

Know with it will be apparent to those skilled in that, in entity of the present invention and method and in structure of the present invention, can under the situation that does not deviate from scope of the present invention or spirit, carry out various modifications and changes.

Specific embodiment and example have been described the present invention relatively, and specific embodiment and example estimate it is illustrative rather than restrictive in all respects.Person of skill in the art will appreciate that many various combinations of hardware, software and firmware will be fit to put into practice the present invention.

In addition, by thinking deeply specification of the present invention disclosed herein and practice, those skilled in the art can know clearly other realization of the present invention.Estimate that it is exemplary that this specification and example are understood that.For this reason, be appreciated that the aspect of invention is to be less than whole features of above disclosed single realization or configuration.Therefore, true scope of the present invention and spirit are represented by following claims.

Claims

1. one kind is used for providing service method at communication network, described communication network comprises swap server (200), internet protocol multimedia subsystem (30) and one or more circuit switching connecting system (40-1 ... 40-n), described swap server (200) comprises access controlling call entity (250), described access controlling call entity (250) is provided for handling by the circuit switching signaling message and offers via described circuit switching connecting system (40-1 via the circuit switching connection ... one or more terminal (400-1 that are connected to described swap server (200) 40-n) ... circuit-switched call 400-n) and service one of them or both, described method is used for further described circuit-switched call being provided and serving one of them or both to the terminal installation (300) that is connected to described swap server via described internet protocol multimedia subsystem (30) from described communication network, and described method comprises:

-to provide (S110) service to provide entity, described service to provide entity to be used for making described circuit-switched call and described service one of them or both can be the user by the described circuit switching signaling message with the circuit switching join dependency used for described terminal installation (300);

-in described terminal installation (300), provide (S120) to be used for being sent to described access controlling call entity the described circuit switching signaling message signaling message relevant with the packet-switched sessions that is sent to described internet protocol multimedia subsystem between carry out the first interworking entity (330) of interworking

-at described swap server, (200) provide in, (S130) described internet protocol multimedia subsystem, (30) with described access controlling call entity, (250) the second interworking entity between, (230), the described second interworking entity, (230) be provided for and the described first interworking entity, (330) be sent to described internet protocol multimedia subsystem on the contrary, (30) the relevant signaling message of packet-switched sessions be sent to described access controlling call entity, (250) carry out interworking between the circuit switching signaling message

-set up packet-switched sessions by the described first interworking entity (330) and second interworking entity (230) the institute termination, and

-provide entity to provide circuit-switched call and service one of them or both via the described first interworking entity and the described second interworking entity from the described service of described access controlling call entity to described terminal installation (330) that is provided for circuit switching and is connected.

2. the method for claim 1, wherein described circuit switching signaling message comprises location update message and mobile management message one of them or both.

3. as each the described method in the above claim, wherein, the described second interworking entity (230) is adapted at carrying out interworking between the User Network Interface signaling message of the packet-switched sessions that is sent to the User Network Interface circuit switching signaling message of described access controlling call entity (250) and is sent to described internet protocol multimedia subsystem (30).

4. as each the described method in the above claim, wherein, one of them or both of described first interworking entity (330) and the described second interworking entity (230) are provided for embedding one of them or both by message maps and message carry out interworking between the described signaling messages of described circuit switching signaling message that circuit switching connects and packet-switched sessions.

5. as each the described method in the above claim, wherein, the described signaling message of packet-switched sessions meets session initiation protocol and has session initiation protocol one of them or both of encapsulation ISDNYong Hubufen.

6. as each the described method in the above claim, wherein, described swap server (200) comprises Mobile Switching Center Server and telephone swap server one of them or both.

7. as each the described swap server in the above claim, wherein, described swap server (200) comprises SoftSwitch.

As above claim in each described swap server, wherein, described connecting system (40-1 ... 40-n) comprise one or more among GSM, UMTS, LTE, POTS and the ISDN.

9. as each the described method in the above claim, wherein, described access controlling call entity (250) is arranged to the predetermined control routine is applied to by described one or more connecting system (40-1 ... 40-n) one of them or both of Kong Zhi circuit-switched call and circuit switched service, and be arranged to described predetermined control routine is applied to via the circuit-switched call of described first interworking entity (330) and described second interworking entity (230) one of them or the two control and circuit switched service one of them or both.

10. one kind is used to comprise internet protocol multimedia subsystem (30) IMS and one or more circuit switching connecting system (40-1 ... the swap server (200) of communication network 40-n) (10), described swap server (200) is provided for the session of termination and described internet protocol multimedia subsystem (30), comprising:.

Signaling entity (210), be used for by access side (220) and via described one or more circuit switching connecting system (40-1 ... terminal (the 400-1 that 40-n) communicates ... 400-n) come the switched circuit exchange to connect (42-1 ... 42-n) relevant circuit switching signaling message, described signaling entity (210) is included in and inserts in the controlling call entity (250), described access controlling call entity (250) is provided for handling by described signaling entity (210) and connects (42-1 by described circuit switching ... 42-n) offer described terminal (400-1 ... circuit-switched call 400-n) and service one of them or both, described access controlling call entity (250) comprises the network side (260) that is used for carrying out with other communication network interworking, and

Interface entities (230), be used in the described access side (220) of described signaling entity (210) and be connected to via described internet protocol multimedia subsystem (30) between the terminal (300) of described swap server carrying out interface, and be provided between circuit switching signaling message that the circuit switching about described signaling entity (210) connects and signaling message, carrying out interworking about the packet-switched sessions of the described terminal that is connected to described swap server via described internet protocol multimedia subsystem (30).

11. as each described swap server (200) in the above claim, wherein, described access controlling call entity (250) be provided for according to described one or more circuit switching connecting system (40-1 ... 40-n) calling of Guan Lian one or more access control protocols and terminal control is communicated by letter, and described interface entities is provided for its described circuit switching signaling message that carries out interworking is met in described one or more access control protocol at least one.

12. swap server as claimed in claim 11 (200), wherein, described one or more access control protocol comprises that direct transmission uses subdivision agreement, radio access network applying portion agreement, base station system management and use one or more in subdivision agreement and the ISDNYong Hubufen agreement.

13. as each described swap server (200) in the above claim, wherein, the described circuit switching signaling message that exchanged of the described access side (220) by described signaling entity (210) comprises location update message and mobile management message one of them or both.

14. as each described swap server (200) in the above claim, wherein, described interface entities (230) is adapted at about carrying out interworking between the User Network Interface circuit switching signaling message of described signaling entity and the User Network Interface signaling message about the packet-switched sessions of described terminal.

15. as each described swap server (200) in the above claim, wherein, described interface is provided for embedding one of them or both by message maps and message carries out interworking between the described signaling message of described circuit switching signaling message that circuit switching connects and packet-switched sessions.

16. as each the described swap server (200) in the above claim, wherein, the described signaling message of packet-switched sessions meets session initiation protocol and has session initiation protocol one of them or both of encapsulation ISDNYong Hubufen.

17. as each the described swap server (200) in the above claim, comprise Mobile Switching Center Server and telephone swap server one of them or both.

18. each the described swap server (200) as in the above claim comprises SoftSwitch.

19. as each the described swap server (200) in the above claim, wherein, described circuit switching connecting system comprises one or more among GSM, UMTS, LTE, POTS and the ISDN.

20. as each described swap server (200) in the above claim, wherein, one of them or both of the signaling session that is connected with packet switching of the described network side (260) of described access controlling call entity (250) the circuit switching signaling message that is adapted at being connected with the circuit switching of other communication network on the network to network interface carry out interworking.

21. as each described swap server (200) in the above claim, wherein, described access controlling call entity (250) is arranged to the predetermined control routine is applied to circuit-switched call by described one or more connecting systems control and circuit switched service one of them or both, and is arranged to described predetermined control routine is applied to via the circuit-switched call of described interface entities control and circuit switched service one of them or both.

22. as each the described swap server (200) in the above claim, wherein, described access controlling call entity is provided for handling the packet-switched speech communication via described interface entities.

23. as each the described swap server (200) in the above claim, wherein, described one or more circuit switched service comprise text message service.

24. a communicator (300) that is used for providing to the user service, described device (300) are fit to insert swap server (200) via internet protocol multimedia subsystem (30), described device (300) comprising:

Service provides unit (310), and being used for circuit switching signaling message by the circuit switching join dependency, to make the circuit exchanging telephone service can be the user used;

Session termination unit (320) is used for the termination signaling message relevant with packet-switched sessions;

Interworking unit (330) is used for providing between the relevant circuit switching signaling message of the circuit-switched messages of the unit signaling message relevant with the packet-switched sessions that is sent to described session termination unit and carrying out interworking being sent to described service.

25. a system that is used for providing at communication network (10) service, described communication network (10) comprises internet protocol multimedia subsystem (30) and one or more circuit switching connecting system (40-1 ... 40-n), described system comprises:

Swap server (200), comprise and insert controlling call entity (250), described access controlling call entity (250) is provided for handling by the circuit switching signaling message and offers via the one or more terminal (400-1 that are connected to described swap server (200) in the described circuit switching connecting system via the circuit switching connection ... circuit-switched call 400-n) and service one of them or both;

Terminal installation (300), be connected to described swap server (200) via described internet protocol multimedia subsystem (30), wherein said communication network (10) is fit to described circuit-switched call is provided and serve one of them or both to described terminal installation (300);

Wherein said terminal installation (300) comprising:

-service provides entity (310), and it is used to be used for making described circuit-switched call and described service one of them or both can be the user by the described circuit switching signaling message with the circuit switching join dependency; And

--the first interworking entity (330), be used between the described circuit switching signaling message that is sent to described access controlling call entity (250) signaling message relevant, carrying out interworking with the packet-switched sessions that is sent to described internet protocol multimedia subsystem (30),

Wherein said swap server (200) comprising:

-the second interworking entity (230) between described internet protocol multimedia subsystem (30) and described access controlling call entity (250), the described second interworking entity (230) be provided for the described first interworking entity (330) on the contrary at the relevant signaling message of the packet-switched sessions that is sent to described internet protocol multimedia subsystem (30) and be sent between the circuit switching signaling message of described access controlling call entity (250) and carry out interworking

And wherein said terminal installation (300) and described swap server (200) comprise the corresponding controllers entity that is used to carry out the following step:

-set up packet-switched sessions by described first interworking entity and described second interworking entity (330,230) the institute termination, and

-provide entity (310) to provide circuit-switched call and service one of them or both via the described first interworking entity and the described second interworking entity (230,330) from the described service of described access controlling call entity (250) to described terminal installation (300) that is provided for circuit switching and connects.